Vulcanizing apparatus.



H. J. HOYT.

VULCANIZING APPARATUS.

APPLlc/moN FILED APR-29. I9I6.

1,209,162. Patented Dec. 19,1916.

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HOMER J. HOYT, or nnrnorr, MICHIGAN, ASSIGNOR TO MORGAN & WRIGHT, A CORPORATION or MICHIGAN.

vuLcANIzINe APPARATUS.

Specification of Letters Patent.

Patented Dec. 1a, 1916.

Application filed April 29, 1916. Serial No. 94,318.

To all whom it may, concern:

[Be it known that I, HOMER J. HOYT, a citizen of the United States, residing at De' troit, county of Wayne, and State of Michigan, have invented certain new and useful Improvements in 'Vulcanizing Apparatus,

'ofwhich the following is a full, clear, and

exact description. I

This invention relates to vulcanizingapparatus,- more particularly to that type known as presses.

An object of this invention is to provide a. press wherein the molds may be accurately positioned in axial alinement with each other so that'they distribute their pressure evenly over those beneath them, thus assuring uniform density and compactness in the-vulcanized product. V

- With the above and other objects in view, the invention consists in certain'novel de-- tails of construction and combinations of parts hereinafter described and claimed, it

being understood that various modifications may be resorted to within the scope of the, appended claims without departing from the spirit orsacrificing any of the advantages of the invention.

An apparatus embodying, my improvements is shown in the accompanying drawing, in which V F igure 1 is a vertical sectional view through the vulcanizing press. Fig. 2 is a fragmentary plan View showing the guide. Fig. 3 is a fragmentary plan View showing a modified form of guide. Fig. 4 is a. crosssectional view on the line 4.4 Fig. 3.

Referring now to the drawing, the Vulcanizing press is shown to comprise a j acket'or inclosure 10, supported upon a base 11 by supports 12 whi h permit raising and lowering of the inclosure. The top platen or fiXed press member 13 is secured to the base -11 by tie-rods 14. The inclosure 10 is formed with a rim 15 through which and the platen 13 securing bolts 16 or other devices are passed to lock the press closed after insertion of the molds l7, filled with the articles to be vulcanized. Below and in alinement with the platen 13' is a. platen 18, which constitutes the movable, press member, and upon which the molds are supported. The platen 18 is operated by a hydraulic ram 19 which extends through a stufiing box 20 in the inclosure. The interior of the inclosure' is in commumcatlon through a pipe 21 with a source of heat whereby the confined atmosphere Within the inclosure may have a controllable temperature to perform the vulcanizing operation. In carrying out one embodiment of the invention, a bar 22 is secured by bolts 23 or otherwise to theinner face of the inclosure, and is spaced between its extremities outwardlyfrom the wall of the vulcanizer and presents a curved intermediate portion laterally of the path of the molds during entry into the press. The curved portion of the bar forms a guide which is adapted to contact. with the curved periphery of each mold at anumber of points during-passage of the molds past the guide and dispose the molds in'aXial alinement with each other. Thus all of the molds will be centralized with re- ]spect to ,each other, so that the Weight and consequently the pressure of each mold Will be evenly distributed over those beneath it. Upon upward movement of the ram to close the molds between'the press members, the

pressure of the ram will be evenly distriboperate upon the same size molds continuously. To adapt the guide to presses which do not operate upon the same size'molds continuously, I contemplate the modification illustrated in Figs. 3 and 4:. In this embodiment the curved guide 23 is removably secured to the rim 21 of the inclosure 25 by means of clamps 26, each having a hooked end 27 which slidably' receives the edge of the rim as shown in Fig. 4. For adjustably mounting the guide to move perpendicular .to the axis of the inclosure, each clamp is provided with a plurality of openings 28, adapted to interchangeably receive a pin 29 which abuts the inner face of the in closure and determines the extent towhich the guide projects into the inclosure.

While I have illustrated and described a specific type of vulcanizing press, I do notwish to limit myself to the construction shown, since equivalents and modifications are possible, it being simply necessary to the practice of the invention that there be employed in the construction of an type of press, a guide adapted to position the molds Within the press in axial alinement with each other.

Having thus described my. invention, What I claim as new and desire to protect by Letters Patent is: 1 v

1. A vulcanizing apparatus comprising relatively moving press members adapted to receive molds therebetween, an inclosure for the molds, and a. guide for positioning the molds Within the inclosure in axial alinement with each other.

2. A vulcanizing apparatus comprising relatively moving press members adapted to receive molds therebetiveen, an inclosure for the molds, and means on the inclosure arranged to engage the periphery of each mold at a plurality of points during entry of the mold into the inclosure and position the molds in axial alinement with each other.

3. A vulcanizing apparatus comprising relatively moving press members adapted to receive molds therebetween, an inclosure for the molds, and a curved guide on the inclosure adapted to" contact With and conform to the periphery of each mold during entry thereof into the inclosure and position the molds in axial alinement With each other.

4. A. vulcanizing apparatus comprising relativelv moving press members adaptedto receive molds therebetween, an inclosure for the molds, a guide for positioning the molds Within the inclosure in axial alinement with each other, and means adjusta'bly mounting the guide for movement on the inclosure in a plane perpendicular to the axis of the inclosure.-

5. A vulcanizing apparatus comprising relatively moving press members adapted to receive molds therebetween, an inclosure for @opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

